309S and 310S heat-resistant stainless steel pipes and plates

309S and 310S Heat - Resistant Stainless Steel Pipes and Plates

1. Introduction to the Products

Our company, a professional manufacturer established in 2017, specializes in producing high - quality stainless steel products, including 309S and 310S heat - resistant stainless steel pipes and plates. These products are crafted with precision to meet the diverse needs of various industries around the globe. Our export volume ranges from US$5 Million to US$10 Million, and we have a team of 11 - 20 experienced sales representatives dedicated to serving customers from different regions such as North America, South America, Europe, Asia, Africa, and Oceania.

2. Material Characteristics

• 309S Stainless Steel: 309S is an austenitic stainless steel with a high chromium and nickel content. It contains approximately 22% chromium and 12% nickel. This composition gives it excellent oxidation resistance at high temperatures. It can withstand continuous use at temperatures up to about 1035°C (1900°F). The high chromium content forms a protective oxide layer on the surface, preventing further oxidation and corrosion. In addition, 309S has good formability, which allows it to be easily fabricated into pipes and plates of different shapes and sizes.

• 310S Stainless Steel: 310S is also an austenitic stainless steel but with even higher chromium and nickel content than 309S. It typically has around 25% chromium and 20% nickel. This enhanced alloy composition provides superior heat resistance, enabling it to operate at temperatures up to approximately 1150°C (2100°F). 310S offers better resistance to carburization and sulfidation, making it suitable for applications in harsh industrial environments where exposure to high - temperature gases and chemicals is common.

3. Product Specifications

• Pipes: Our 309S and 310S stainless steel pipes come in a variety of diameters, ranging from small - sized pipes with diameters as small as 6mm to large - diameter pipes up to 600mm. The wall thickness can be customized according to customer requirements, typically ranging from 1mm to 20mm. The pipes are available in different lengths, usually from 1m to 12m. They can be either seamless or welded, depending on the specific application and customer preference. Seamless pipes offer better integrity and pressure - bearing capacity, while welded pipes are more cost - effective for some applications.

• Plates: The 309S and 310S stainless steel plates are available in various thicknesses, starting from 1mm and going up to 100mm. The standard width of the plates is usually 1000mm, 1219mm, 1500mm, or 2000mm, and the length can be cut according to the customer's needs, generally ranging from 2000mm to 6000mm. The surface finish of the plates can be polished to different degrees, such as 2B finish (a smooth, semi - bright finish), BA finish (bright annealed finish), or a mirror finish for more aesthetically - demanding applications.

4. Applications

• Industrial Furnaces: Both 309S and 310S pipes and plates are widely used in industrial furnaces. They can be used as heating elements supports, furnace linings, and conveyor belts in heat - treating furnaces, glass melting furnaces, and ceramic kilns. The high - temperature resistance of these materials ensures long - term stability and reliability in such high - heat environments.

• Petrochemical Industry: In the petrochemical industry, these products are used for pipes and vessels that transport high - temperature and corrosive fluids. The excellent corrosion resistance of 309S and 310S helps prevent leakage and damage to the equipment, ensuring the safety and efficiency of the production process.

• Power Generation: For power plants, especially those using coal - fired or gas - fired boilers, 309S and 310S pipes and plates are used in heat exchangers, superheaters, and reheaters. They can withstand the high - temperature and high - pressure steam generated in the power generation process.

5. Quality Assurance

We adhere to strict quality control measures throughout the production process. Our products are manufactured in accordance with international standards such as ASTM, JIS, and GB. Each batch of products undergoes a series of tests, including chemical composition analysis, mechanical property testing (such as tensile strength, yield strength, and elongation), and non - destructive testing (such as ultrasonic testing, magnetic particle testing, and radiographic testing). Only products that pass all these tests are allowed to leave the factory, ensuring that our customers receive products of the highest quality.

6. Customization and Service

We understand that different customers have different requirements. Therefore, we offer customized services for both 309S and 310S stainless steel pipes and plates. Whether it is a special size, shape, or surface finish, our professional R & D team and production workers will work closely with you to meet your specific needs. In addition, our sales team is always ready to provide you with prompt and professional pre - sales and after - sales service. We can offer technical support, product consultation, and help you with any problems you may encounter during the use of our products.